Foot shearing device
阅读说明:本技术 一种剪脚装置 (Foot shearing device ) 是由 安凌 王华林 于 2020-07-14 设计创作,主要内容包括:本发明属于电子组装技术领域,公开了一种剪脚装置。该剪脚装置包括:机台,具有上下贯通的搭接部;托盘,可替换地搭接在所述搭接部,所述托盘具有与所述PCB上安装的所述电子元件的所述引脚的位置一一对应的引脚孔,以在所述PCB安放在所述托盘上时,所述电子元件的所述引脚能穿入所述引脚孔,并使所述引脚的过长部分延伸出所述托盘的底面;以及剪切机构,与所述托盘的底面相抵接,以能在沿所述托盘的底面移动后切除所述引脚延伸出所述托盘的底面的部分。该剪脚装置能够一次性切除PCB上各个电子元件的引脚的过长部分。(The invention belongs to the technical field of electronic assembly and discloses a pin shearing device. Should cut foot device includes: a machine platform which is provided with a vertically through lap joint part; a tray replaceably overlapped on the overlapping part, the tray having pin holes corresponding to positions of the pins of the electronic component mounted on the PCB one by one, so that the pins of the electronic component can penetrate the pin holes and the overlong portions of the pins can extend out of the bottom surface of the tray when the PCB is mounted on the tray; and the shearing mechanism is abutted against the bottom surface of the tray so as to cut off the part of the pin extending out of the bottom surface of the tray after moving along the bottom surface of the tray. The pin cutting device can cut off overlong parts of pins of all electronic elements on the PCB at one time.)
1. A pin shearing apparatus for shearing off excess lengths of pins (201) of an electronic component (20) mounted on a PCB (10), comprising:
a machine base (1) having a vertically-through lap joint part (11);
a tray (2) alternatively lapped on the lapping part (11), wherein the tray (2) is provided with pin holes (21) which correspond to the positions of the pins (201) of the electronic element (20) installed on the PCB (10) in a one-to-one mode, so that when the PCB (10) is placed on the tray (2), the pins (201) of the electronic element (20) can penetrate into the pin holes (21), and the overlong parts of the pins (201) extend out of the bottom surface of the tray (2); and
and the shearing mechanism (3) is abutted against the bottom surface of the tray (2) so as to cut off the part of the pin (201) extending out of the bottom surface of the tray (2) after moving along the bottom surface of the tray (2).
2. The device according to claim 1, characterized in that the device further comprises a holding mechanism (4), the holding mechanism (4) being configured to hold the PCB (10) and the electronic component (20) while the cutting mechanism (3) cuts off the pin (201).
3. A device according to claim 2, wherein the holding-down means (4) comprises:
the lifting plate (41) is positioned above the machine table (1) and can move towards or away from the tray (2); and
the pressing pieces (42) are penetratingly arranged on the lifting plate (41) and can slide along the vertical direction, and the portions, penetrating out of the lifting plate (41), of the pressing pieces (42) can press the PCB (10) and the electronic element (20) when the lifting plate (41) descends to be close to the tray (2).
4. A device according to claim 3, wherein a plurality of said holding-down members (42) are arranged in an array.
5. A device according to claim 1, wherein the cutting mechanism (3) comprises:
a cutter (31); and
the floating support assembly (32) is configured to drive the cutters (31) to move, and can upwards press the cutters (31) so as to enable each cutter (31) to be kept in contact with the bottom surface of the tray (2).
6. A device according to claim 1, characterized in that the floating support assembly (32) comprises a base body (321) and a floating support, the base body (321) being movable in a preset shearing direction parallel to the bottom surface of the tray (2); the floating support includes:
a hollow post (322) fixed to the base (321), the hollow post (322) having a guide hole (3221) extending in a vertical direction;
a gasket (323) fixed to the bottom of the cutter (31);
the guide post (324) is fixed on the cutter (31), and the guide post (324) penetrates through the gasket (323) and is movably inserted into the guide hole (3221); and
and a spring (325) having both ends connected to or abutted against the gasket (323) and the base (321), respectively.
7. A device according to claim 6, wherein:
the diameter of the guide hole (3221) is larger than the diameter of the guide post (324);
the top of the guide post (324) is provided with a spherical crown part (3222) protruding upwards;
a guide cover (326) is arranged at the bottom of the gasket (323) in the circumferential direction of the guide post (324), a ball cage part (3261) which is concave upwards is arranged at the bottom of the guide cover (326), and the ball cage part (3261) can be in sliding contact with the spherical crown part (3222).
8. A device according to claim 6, characterized in that said plurality of knives (31) is provided in plurality, a plurality of said knives (31) being arranged side by side, a plurality of said floating supports supporting a plurality of said knives (31) in a one-to-one correspondence.
9. Device according to any one of claims 5 to 8, characterized in that the cutting edge of the knife (31) is serrated.
10. A device according to claim 6, wherein the base body (321) is configured to move in the predetermined cutting direction while oscillating reciprocally perpendicular to the predetermined cutting direction.
Technical Field
The invention relates to the technical field of electronic assembly, in particular to a pin shearing device.
Background
The pin cutting method of electronic components commonly used in the electronic processing and assembling industry at present is to configure a pin cutting device for each type of electronic components mounted in a processed PCB, so as to perform separate pin cutting on each electronic component, and then insert each type of electronic components into the PCB for soldering.
In view of the above, it is necessary to purchase various pin shearing devices, which is expensive in investment cost. Meanwhile, the assembly mode of firstly cutting the pins and then inserting the pins is low in efficiency, and manpower is wasted. In addition, after each electronic component with pre-cut pins is inserted into the PCB, the length of each pin of each electronic component cannot be ensured to be adapted to the thickness of the PCB, and if the pin is too long, a short circuit of the product will be caused.
Disclosure of Invention
The invention aims to provide a pin cutting device which can cut off overlong parts of pins of various electronic elements on a PCB at one time.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pin cutting device for cutting off an excess length of a pin of an electronic component mounted on a PCB, comprising:
a machine platform which is provided with a vertically through lap joint part;
a tray replaceably overlapped on the overlapping part, the tray having pin holes corresponding to positions of the pins of the electronic component mounted on the PCB one by one, so that the pins of the electronic component can penetrate the pin holes and the overlong portions of the pins can extend out of the bottom surface of the tray when the PCB is mounted on the tray; and
and the shearing mechanism is abutted against the bottom surface of the tray so as to cut off the part of the pin extending out of the bottom surface of the tray after moving along the bottom surface of the tray.
Preferably, the pin shearing device further comprises a pressing mechanism configured to press the PCB and the electronic component when the pin is cut off by the shearing mechanism.
Preferably, the pressure holding mechanism includes:
the lifting plate is positioned above the machine table and can move towards or away from the tray; and
the pressing and holding pieces are penetratingly arranged on the lifting plate and can slide along the vertical direction, and the part of the pressing and holding pieces penetrating out of the lifting plate downwards can be abutted against the PCB and the electronic element when the lifting plate descends to be close to the tray.
Preferably, a plurality of the pressing pieces are distributed in an array.
Preferably, the shearing mechanism includes:
a cutter; and
the floating support assembly is configured to drive the cutters to move and can upwards press the cutters so as to enable each cutter to be kept in contact with the bottom surface of the tray.
Preferably, the floating support assembly comprises a base body and a floating support part, wherein the base body can move along a preset shearing direction parallel to the bottom surface of the tray; the floating support includes:
the hollow column is fixed on the base body and provided with a guide hole extending along the vertical direction;
the gasket is fixed at the bottom of the cutter;
the guide post is fixed in the cutter, penetrates through the gasket and is movably inserted into the guide hole; and
and two ends of the spring are respectively connected or abutted to the gasket and the base body.
Preferably, the diameter of the guide hole is larger than the diameter of the guide pillar; the top of the guide post is provided with a spherical crown part protruding upwards; the gasket bottom is located the circumference of guide pillar is provided with the guide housing, the guide housing bottom has the ball cage portion of establishing of upwards caving in, ball cage portion can with ball crown portion sliding contact.
Preferably, the number of the tools is plural, the plural tools are arranged side by side, and the plural floating support portions support the plural tools in a one-to-one correspondence.
Preferably, the cutting edge of the cutter is serrated.
Preferably, the substrate is configured to be reciprocally swung perpendicular to the preset shearing direction while being moved in the preset shearing direction.
The invention has the beneficial effects that:
when the pin shearing device provided by the invention is used for shearing pins, the PCB can be manually placed on the tray, then each electronic element is installed on the PCB, meanwhile, pins of the electronic element can penetrate through the PCB through holes and the tray through holes, the part of each electronic element, which penetrates out of the pin hole, is the overlong part to be cut, and after the shearing mechanism moves along the bottom surface of the tray for shearing, the overlong part of each electronic element, which is cut by the pin shearing mechanism, can be removed at one time, so that the pin shearing efficiency is greatly improved. And, to the pin shearing operation of the PCB board with different electronic component mounting positions or different types of mounted electronic components, it is sufficient to correspondingly configure the trays with different sizes, positions, numbers and other pin hole parameters. The thickness of each tray can be adjusted adaptively, so that pins with different lengths can be reserved after the pins of the electronic elements on the PCB are cut.
Drawings
Fig. 1 is a schematic structural view of a foot cutting device in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a foot shearing device in an embodiment of the invention during foot shearing operation;
FIG. 3 is a schematic structural view of a tray in an embodiment of the invention;
FIG. 4 is a schematic view of the structure of a cutter in an embodiment of the invention;
FIG. 5 is a schematic structural view of a shearing mechanism in an embodiment of the invention;
fig. 6 is a partial cross-sectional view of a shearing mechanism in an embodiment of the invention.
In the figure:
1. a machine platform; 11. a lap joint section;
2. a tray; 21. a pin hole;
3. a shearing mechanism; 31. a cutter; 32. a floating support assembly; 321. a substrate; 322. a hollow column; 3221. a guide hole; 3222. a ball crown portion; 323. a gasket; 324. a guide post; 325. a spring; 326. a guide housing; 3261. a ball cage portion;
4. a pressing mechanism; 41. a lifting plate; 42. a pressing member;
10. a PCB; 20. an electronic component; 201. a pin;
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; the two electronic components may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of the two electronic components or may be in an interaction relationship with the two electronic components. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or electronic element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The present embodiment provides a pin cutting apparatus capable of cutting off an excessively long portion of a pin of an electronic component mounted on a PCB, particularly, allowing the excessively long portion of the pin of each electronic component mounted on the PCB to be cut off at one time.
Referring to fig. 1, 2 and 3, the pin shearing apparatus includes a machine table 1, a
When the pin shearing mechanism is used for shearing pins, the PCB10 can be manually placed on the
It can be understood that, regarding the pin cutting operation of the PCB10 with different mounting positions of the
In order to prevent the
Further, the pin shearing device further comprises a
Referring to fig. 1 and 2, in the present embodiment, the
It is understood that the lifting plate 41 may be disposed at the movable end of a lifting mechanism such as a lifting module, a hydraulic lifting platform, etc. The pressing member 42 is provided with a limit structure engaged with the lifting plate 41, and the limit structure is used for keeping the pressing member 42 on the lifting plate 41, i.e. preventing the pressing member 42 from sliding downwards out of the lifting plate 41. For example, the pressing member 42 may be a column, the top of the column has a head with a diameter slightly larger than the diameter of the main body, a through hole with a diameter larger than or equal to the diameter of the main body of the pressing member 42 and the diameter of the head of the pressing member 42 is vertically arranged on the lifting plate 41, and the pressing member 42 penetrates into the through hole from above the lifting plate 41.
When the elevating plate 41 is lowered to be adjacent to the
To ensure that each
In other alternative embodiments, the pressing member 42 may also be an elastic material, such as a pressure-equalizing sponge, which can elastically deform after being pressed against the PCB10 or the
Referring to fig. 4 to 6, in the present embodiment, the
Specifically, the main structure of the
Referring to fig. 6, the floating
The
Preferably, the diameter of the guide hole 3221 is larger than the diameter of the
When the bottom surface of the
By means of the structure, when the moving
Preferably, the number of the
As shown in fig. 5 and 6, each
Referring to fig. 4, in the embodiment, the blade of the
Further, in this embodiment, the pin shearing mechanism preferably employs a pendulum pin shearing machine, so that when the base 321 can move along the preset shearing direction, it can simultaneously swing back and forth perpendicular to the preset shearing direction, so that the above-mentioned serrated blade can cut the
It should be noted that the above-mentioned lead screw lifting module, hydraulic lifting platform, pin shearing machine, pendulum pin shearing machine, etc. are all applied industrially in the prior art, and therefore, the structure and working method thereof are not described herein.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
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